BCL9 and ductal breast carcinoma in situ: As shown in Fig. 4b, BCL9 KD significantly suppressed growth by 0.55 ± 0.01 fold (p <0.05; compared to 1.02 ± 0.02 in control) in DCIS.COM and by 0.62 ± 0.01 fold in SUM225 (p <0.05; compared to 0.76 ± 0.004 in control).